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HOW TO UNLOCK & RELOCK SONY XPERIA BOOTLOADER

UNLOCKING BOOTLOADERIf you are the type that likes custom ROMs on your device, unlocking your bootloader is the key your dreams. So below are the steps on how to easily unlock the bootloader of your sony xperia.NoteMake sure you have internet connection on your PC.Doing this may void your warranty.I'm not responsible for any damage you cause on your device.Download and install latest Flashtool from here.Start Flashtool and click on BLU button on the topFlashtool will show a pop up window, turn off your device and connect it to PC while holding volume down button.Flashtool will check your device. After that connect your device again while holding volume up button.Click on get unlock key button, it will switch you to Sony Mobile website, select your phone and hit continueFill your email address and accept terms and conditions, than click submitGo to your mailbox and click on Click here to proceed link in mail from Sony Mobile.Copy IMEI from Flashtool to Sony Mobile site and once more accept terms and conditions, then click submitCopy unlock key to Flashtool window and than click unlockyour device is unlockedRELOCKING BOOTLOADER.If you have an unlocked bootloader an you want to lock it back for some reasons, follow the guide below.